E3S Web of Conferences

Problems of using certain unnamed ways to ensure fulfillment of obligations

Nina Semeryanova, Artem Tsirin, Sergey Matulis and Ibragim Ibragim

E3S Web Conf., 164 (2020) 11027

Published online: 05 May 2020

DOI: 10.1051/e3sconf/202016411027

Nina Semeryanova

Artem Tsirin

Sergey Matulis

Ibragim Ibragim

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